<html>
<head>
<script>
window.onload = function(){
	if(typeof top.buildFrameWindowGetter == 'function'){
		//iframe下子调父用top比opener稳妥
		top.getFrameWindow = top.buildFrameWindowGetter(window);
	}
}
</script>
</head>
<body>
	abc
</body>
</html>
